H3C S7500E Static Multicast MAC Address Entry Configuration Examples

Introduction· 1

Prerequisites 1

Example: Configuring static multicast MAC address entries 1

Network requirements 1

Requirements analysis 2

Software version used· 2

Configuration restrictions and guidelines 2

Configuration procedures 2

Verifying the configuration· 2

Configuration files 3

Related documentation· 3

Introduction

This document provides configuration examples of static multicast MAC address entries.

Prerequisites

The configuration examples in this document were created and verified in a lab environment, and all the devices were started with the factory default configuration. When you are working on a live network, make sure you understand the potential impact of every command on your network.

This document assumes that you have basic knowledge of multicast MAC addresses.

Example: Configuring static multicast MAC address entries

Network requirements

As shown in Figure 1, Router A runs IGMP and acts as the IGMP querier. Switch A does not run a Layer 2 multicast protocol.

Configure Switch A so that only Host A and Host C can receive multicast data addressed to the multicast group 224.1.1.1.

Figure 1 Network diagram

Requirements analysis

Multicast MAC address entries guide Layer 2 multicast forwarding. They can be dynamically created through Layer 2 multicast protocols or manually configured by binding multicast MAC addresses and ports.

In this example, Switch A does not run a Layer 2 multicast protocol. To control destination ports of Layer 2 multicast data, configure a static multicast MAC address entry on Switch A.

Software version used

This example was created and verified on S7500E-CMW710-R7150.

Configuration restrictions and guidelines

When you configure multicast MAC address entries, follow these guidelines:

·     The manually configured multicast MAC address in the multicast MAC address entry must be unused.

Configuration procedures

# On Switch A, create VLAN 100.

<SwitchA> system-view

[SwitchA] vlan 100

[SwitchA-vlan100] quit

# Configure GigabitEthernet 3/0/1 through GigabitEthernet 3/0/4 to operate in Layer 2 mode, and assign the ports to VLAN 100.

[SwitchA] interface range gigabitethernet 3/0/1 to gigabitethernet 3/0/4

[SwitchA-if-range] port link-mode bridge

[SwitchA-if-range] port access vlan 100

[SwitchA-if-range] quit

# Translate the multicast IP address 224.1.1.1 to a multicast MAC address (0100-5e01-0101). (Details not shown.)

# Create a static entry for multicast MAC address 0100-5e01-0101 with GigabitEthernet 3/0/2 and GigabitEthernet 3/0/4 in VLAN 100 as outgoing ports.

[SwitchA] mac-address multicast 0100-5e01-0101 interface gigabitethernet 3/0/2 gigabitethernet 3/0/4 vlan 100

Verifying the configuration

# Display static multicast MAC address entries in VLAN 100 on Switch A.

[SwitchA] display mac-address multicast vlan 100

MAC Address      VLAN ID    State            Port/NickName            Aging

0100-5e01-0101   100        Multicast        GE3/0/2                  N

                                             GE3/0/4

The output shows that GigabitEthernet 3/0/2 and GigabitEthernet 3/0/4 have become outgoing ports of the multicast MAC group 0100-5e01-0101.

Configuration files

#

vlan 100

#

interface GigabitEthernet3/0/1

 port link-mode bridge

 port access vlan 100

#

interface GigabitEthernet3/0/2

 port link-mode bridge

 port access vlan 100

#

interface GigabitEthernet3/0/3

 port link-mode bridge

 port access vlan 100

#

interface GigabitEthernet3/0/4

 port link-mode bridge

 port access vlan 100

#

mac-address multicast 0100-5e01-0101 interface GigabitEthernet3/0/2 GigabitEthernet3/0/4 vlan 100

#

Related documentation

·     H3C S7500E Switch Series IP Multicast Command Reference Release 7150

·     H3C S7500E Switch Series IP Multicast Configuration Guide Release 7150